This function enables the user to modify surfaces by morphing a U or V section line on the surface.
· Select a surface by using the function provided in SELECT SURFACE dialog box.
After a surface is selected, the U-V lines are displayed on the surface and a dialog box as illustrated in Figure 6.5.5 is displayed.
· Select the CONSTRAINT TYPE as described in the INTERIOR MORPHING function.
· Click on the SELECT SECTION LINE button to select a U or V section line as control line.
Figure 6.5.5 Section Line Morphing dialog box
· Click on the SELECT MORPHING POINT button to select a control point on the selected section line. After an interior point is selected, the user may move the cursor to view the morphed U-V line in dynamic mode. When a desired shape is obtained, the user clicks on the left mouse button to accept the morphed result. The surface is updated according to the new control line.
· Toggle on checkbox of the DEFINE MORPH DIRECTION option to define a morphing vector.
· ADD SECTION LINE function allows the user to add UV section lines at the cursor location. REMOVE SECTION LINE allows the user to remove U or V section lines using mouse pick. UNDO aborts the last morphing operation. RESET sets the surface back to its original shape.